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Current Electri...

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  • Question 1
    4 / -1

    The graph represents the current voltage behaviour of a water voltameter. Spot the correct explanation:

  • Question 2
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    What carries current in an electrolyte?

  • Question 3
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    The electrochemical equivalent of magnesium is 0.126 mg/C. A current of 10 A is passed in a suitable solution for ½ hour. The mass of magnesium deposited in gram will be

  • Question 4
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    A current of 1 A is passed through a dilute sulphuric acid for sometime to liberate 1 g of oxygen. How much hydrogen is liberate during this period? [Faraday constant F = 96500 C/mol]

  • Question 5
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    An ammeter reads 0.90 A when connected in series with a silver voltameter that deposits 2.60 gram of silver in 40 minutes. By what percentage is the ammeter reading is correct? Atomic weight of silver = 108 and 1 F = 96500 C?

  • Question 6
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    In an electroplating experiment, m g of silver is deposited when 4 A of current flows for 2 minutes. The amount in g of silver deposited by 6 A of current for 40 seconds will be

  • Question 7
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    The Peltier coefficent of a thermo couple of metals A and B at junction temperature T is given by

  • Question 8
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    Thomson coefficient σ, temperature T (in kelvin and Seebeck coefficent S are related as

  • Question 9
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    A 5ºC rise in temperature is observed in a conductor by passing a current. When the current is doubled, the rise in temperature will be approximately

  • Question 10
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    The resistor R1 dissipates power P when connected to a generator. If a resistor R2is inserted in series with R2, the power dissipated by R1

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